684295488 has 168 divisors, whose sum is σ = 2132299520. Its totient is φ = 209018880.

The previous prime is 684295487. The next prime is 684295523. The reversal of 684295488 is 884592486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684295481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338256 + ... + 340272.

Almost surely, 2^684295488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 684295488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066149760).

684295488 is an abundant number, since it is smaller than the sum of its proper divisors (1448004032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684295488 is a wasteful number, since it uses less digits than its factorization.

684295488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2072 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 684295488 is about 26159.0421843003. The cubic root of 684295488 is about 881.2136697261.

The spelling of 684295488 in words is "six hundred eighty-four million, two hundred ninety-five thousand, four hundred eighty-eight".